The xylene sensing performance of WO₃ decorated anatase TiO₂ nanoparticles as a sensing material for a gas sensor at a low operating temperature

Abstract

Here, the pristine and WO3 decorated TiO2 nanoparticles were synthesized by a one-step hydrothermal without the use of a surfactant or template, and used to fabricate gas sensors.

A general nonaqueous sol-gel route to g-C3N4-coupling photocatalysts: the case of Z-scheme g-C3N4/TiO2 with enhanced photodegradation toward RhB under visible-light

“…S4(a) and (b), respectively. The peak with lower binding energy around 530 eV is associated to the oxygen atom in the crystal lattice, while the peak with higher binding energy is assigned to the absorbed oxygen ion61. It proves that there surely exist the oxygen related defects including the oxygen vacancy.…”

Effect of annealing temperature on the characteristic of reduced highly ordered TiO2 nanotube arrays and their CO gas-sensing performance

“…Perillo et al [56] reported that the sensitivity of TiO 2 nanotubes on Si wafer-based sensor towards CO gas is 0.016. Such relatively low sensitivities may not meet the requirement of practical application [57] since a high working range of CO concentrations (> 100 ppm) is obtained by those previous studies. A quiet higher sensitivity and a lower working range of concentrations (< 100 ppm) were obtained by other TiO 2 nanotube-based CO gas sensors, as reported by Gönüllü et al [58] and Kim et al [59].…”

Inorganic-Diverse Nanostructured Materials for Volatile Organic Compound Sensing

“…Similar to microstructure-based volatile hydrocarbon vapors quantification (example: Sn 2+ doped NiO microspheres in Xylene detection with sub-ppm LOD) [ [390][391][392][393][394][395][396][397]. Wherein, Ag/Bi 2 O 3 nanocomposite and Graphene/SnO 2 NPs nanocomposite were found to perform remarkably in terms of their operation temperature (at room temperature) [394,397].…”

“…Similar to microstructure-based volatile hydrocarbon vapors quantification (example: Sn 2+ doped NiO microspheres in Xylene detection with sub-ppm LOD) [ 389 ], nanocomposites, such as Pd/PdO/S-SnO 2 nanocomposite film, rGO/Co 3 O 4 nanocomposite, WO 3 decorated TiO 2 NPs nanocomposite, BGQD/Ag–LaFeO 3 nanocomposite, Ag/Bi 2 O 3 nanocomposite, AgO loaded LaFeO 3 nanocomposite, CuO NPs-Ti 3 C 2 Tx MXene nanocomposite, and Graphene/SnO 2 NPs nanocomposite were effectively applied in the detection of hydrocarbons as detailed in Table 5 [ 390 , 391 , 392 , 393 , 394 , 395 , 396 , 397 ]. Wherein, Ag/Bi 2 O 3 nanocomposite and Graphene/SnO 2 NPs nanocomposite were found to perform remarkably in terms of their operation temperature (at room temperature) [ 394 , 397 ].…”